Dwarf Star Erupts in Giant Flare

Planetary Nebula NGC 7293 also Known as the Helix Nebula

NASA's Galaxy Mission Celebrates Sixth Anniversary

Seeing Baby Dwarf Galaxies

A Cauldron of Stars at the Galaxy's Center

Thor's Helmet

Lone Blazar

Where Kepler Sees

Vivid View of Tycho's Supernova Remnant

A Collage of Nearby Galaxies

Hot, Carbon-Rich Planet (Artist Concept)

Life at the Intersection of Colliding Galaxies

Severe Exoplanetary Storm

The Infrared Helix

Trojan Colors Revealed (Artist's Concept)

Little Galaxy Explored

NASA's Great Observatories Celebrate the International Year of Astronomy

Cool Stars May Have Different Prebiotic Chemical Mix

Andromeda's Colorful Rings

Cracking the Code of Faraway Worlds

Groth Deep Image

Warped Andromeda

Eccentric Habitable Zones (Artist's Concept)

Anomalous Arms

M33: A Close Neighbor Reveals its True Size and Splendor

Highlighting our Tiniest Neighbors

Soul Nebula

Distant Galaxy Bursts with Stars

North America Nebula in Different Lights

Homing in on 'Hot Dogs'

Spitzer Sees Water Loud and Clear

Nursery of Giants

The Rocky World of Young Planetary Systems (Artist Concept)

Massive Young Star and its Cradle

Stormy Clouds of Star Birth

Ant Nebula

NGC 300

Stellar Jewels Shine in New Spitzer Image

Mira Soars Through the Sky

Quasar Lenses

Stars in Orion as Seen from Mars

Cosmic Cocoon

The Action-Packed Centaurus A

Dragon's Lair

NASA's Galaxy Mission Celebrates Sixth Anniversary

A Nearby Stellar Cradle

It's Not a Bird or a Plane

GALEX 1st Light Compilation

Altair

Bright Lights, Green City

Dust in the Quasar Wind (Artist Concept)